field bean vs European bean

field bean and European bean both are nouns.

Word	Noun	Adjective	Verb	Adverb
field bean	Yes	No	No	No
European bean	Yes	No	No	No

As nouns, field bean and European bean are synonyms defined as:

field bean and European bean: Old World upright plant grown especially for its large flat edible seeds but also as fodder

Other synonyms of field bean include broad-bean, broad-bean plant, broad bean, English bean, Vicia faba.

field bean (noun)	European bean (noun)
Old World upright plant grown especially for its large flat edible seeds but also as fodder	Old World upright plant grown especially for its large flat edible seeds but also as fodder